// 将PurchaseOrderVO转换为ShipOrderVO
import { generateShortId } from "@/utils";
import { DecimalUtils } from "@/utils/classes/calculators/core/DecimalUtils";

/**
 * 将PurchaseOrderVO转换为ShipOrderVO
 * @param purchaseOrderVO 采购订单对象
 * @returns 发货单对象
 */
export const convertPurchaseOrderToOrderShip = (
  purchaseOrderVO: BusinessAPI.PurchaseOrderVO
): BusinessAPI.OrderShip => {
  // 添加一个辅助函数用于分组
  const groupBy = <T>(
    array: T[],
    keyFn: (item: T) => string,
  ): Record<string, T[]> => {
    return array.reduce(
      (groups, item) => {
        const key = keyFn(item);
        if (!groups[key]) {
          groups[key] = [];
        }
        groups[key].push(item);
        return groups;
      },
      {} as Record<string, T[]>,
    );
  };

  // 转换供应商列表为发货单项列表，根据 purchasePrice 分组
  const suppliersByPrice = groupBy(
    purchaseOrderVO.orderSupplierList || [],
    (supplier) => String(supplier.purchasePrice)
  );

  const orderShipItemList: BusinessAPI.OrderShipItem[] = Object.entries(suppliersByPrice).map(
    ([price, suppliers]) => {
      // 计算该价格下的总毛重、总净重等
      const totalGrossWeight = DecimalUtils.toDecimalPlaces(suppliers.reduce(
        (sum, supplier) => DecimalUtils.add(sum, supplier.grossWeight || 0), 0
      ))

      const totalNetWeight = DecimalUtils.toDecimalPlaces(suppliers.reduce(
        (sum, supplier) => DecimalUtils.add(sum, supplier.netWeight || 0), 0
      ));

      const totalAmount = DecimalUtils.toDecimalPlaces(suppliers.reduce(
        (sum, supplier) => DecimalUtils.add(sum, supplier.invoiceAmount || 0), 0
      ))

      return {
        itemId: generateShortId(),
        orderShipId: "", // 将在创建发货单时填充
        orderId: purchaseOrderVO.orderId,
        grossWeight: totalGrossWeight,
        boxWeight: totalGrossWeight - totalNetWeight,
        netWeight: totalNetWeight,
        unitPrice: parseFloat(price),
        totalAmount: totalAmount,
        watermelonGrade: "", // 需要手动填写
      };
    }
  );

  // 构建ShipOrder对象，不转换费用信息
  return {
    orderShipId: generateShortId(),
    orderId: purchaseOrderVO.orderId,
    orderSn: "",
    watermelonGrade: "",
    dealerId: purchaseOrderVO.orderVehicle?.dealerId!,
    dealerName: purchaseOrderVO.orderVehicle?.dealerName!,
    companyId: purchaseOrderVO.orderCompany?.companyId,
    companyName: purchaseOrderVO.orderCompany?.fullName,
    shippingAddress: purchaseOrderVO.orderVehicle?.origin,
    receivingAddress: purchaseOrderVO.orderVehicle?.destination,
    shippingDate: purchaseOrderVO.orderVehicle?.deliveryTime,
    estimatedArrivalDate: "",
    document: "",
    state: 'WAIT_PAYMENT',
    orderShipItemList
  };
};